Cluster-fixture for electric lights.



No. 897,455. PATENTED SEPT. 1, 1908.

J. H. CALDWELL.

CLUSTER FIXTURE FOR ELECTRIC LIGHTS.

APPLICATION rum) DEC. 21, 1901.

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C No. 897,455. PATENTED SEPT. 1, 1908.

J. H. CALDWELL. CLUSTER FIXTURE FOR ELECTRIC LIGHTS.

APPLICATION TILED DEC. 21, 1907.

2 SHEETS-SHEET 2.

I attain;

JOHN H. CALDWELL, OF PHILADELPHIA, PENNSYLVANIA.

CLUSTER-FIXTURE FOR ELECTRIC LIGHTS.

Specification of Letters Patent. I

Patented Sept. 1, 1908.

Application filed December 21, 1907. Serial No. 407,531.

To all whom it may concern:

Be it known that I, JOHN H. CALDWELL, a citizen of the United. States, residing at Philadelphia, in the'county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Cluster-Fixtures for Electric Lights; and 1 do hereby declare the following to be a full, clear, and exact descri tion of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which orm a part of this specification.

This invention relates to new and useful im )rovements in cluster fixtures for electric lig ts and the object in view is to produce a device of this nature, made up preferably of detachable parts and so arranged that one or more lights may be turned on separately or simultaneously.

The invention comprises various details of construction and combinations and arrangements of parts which will be hereinafter fully described and then specifically defined in the appended claims.

My invention 15 illustrated in the accompanying drawings, in which Figure 1 is a perspective view showing my improved cluster fixture. Fig. 2 is a sectional view through the two-part fixture. Fig. 3 is a detail sectional view of the shade. Fig. 4 is a detail perspective view of the parts of the switch member. Fig. 5 is a detail view showing the manner of attachof the raised portion,

ing the shade holder to the switch member,

and Fig. 6 1s a plan iew of. the switch member.

Reference now being the drawings by letter, ner switch containing member, made preferably of porcelain or any other suitable material, and has fastened thereto the bulb receiving sockets A and upon a raised portion thereof is the contact ring B secured thereto by screws or other connections and is provided with radially disposed contact arms C, one for each bulb socket. Said member A .has a recess on the under side said recess having a metallic lining D, and E is a disk having the resilient contact arms F secured to the circumferenee thereof, the contact arm having a laterally rojecting finger H adapted to frietionally ear against the metallic lining had to the details of A designates the in-.

l in said recess. Said lining hasa lug 1 proljecting therefrom connected by means of l the screw J to a bracket arm K seated in the upper end of said raised portion. A pin N rises from said disk and extends through i an aperture in said raised portion and its outer end is threaded to receive the turn button 0, whereby said disk may be rotated to bring one or another of the contact arms upon said disk into or out of contact with the metallic contact points Q which are seated in said recesses in the face of said member A. About the marginal edge of the member A are the lugs A which are. recessed away at A to receivethe hooked ends R of the shade supporting, fingers R, which fingers have laterally rojecting lugs R which extend through tie apertures in the plate S and are clenched about the marginal ed es of said apertures, thereby securely. ho ding the shade supporting fingers upon' said plate. T designates the outer section or cover which is of bowlshape and provided with openings T in the circumference thereof which are adapted to register with the sockets for the rece tion of the bulb. An aperture T is forms in the apex of said bowl-shaped cover and through which said threaded pin is adapted to pass. A spring L is mounted upon said pin and has a bearing between the top of the raised portion 'and the key L,

the ob ect of said spring being to normally hold the disk with the contact points thereon in the recess formed in the end of the part A.

When the part A is adjusted in proper position Within the cover T with the pm proj ecting through the aperture in the apex of the threaded end of the pin, thereby holding the parts together.

From the foregoing, by the provision of a cluster switch as shown and described, the lamps may be lighted singly or in sections by causingone contact point u on said disk to be thrown into con tact wit one'of the contact oints seated in the recesses in the part A or, y giving a further rotary movement to the disk, two lamps may be thrown into circuit or, by giving a still further movement, all three of the lamps may be lighted. It will by the provision of a fixture as shown and described, the parts are compact, binding screws or wire connections I are dispensed also be noted that} which passes through an aperture in said pm,

cover, the button is mounted upon the hat I claim to be new is l. A cluster electric fixture comprisirig a switch holding member with bulb sockets thereon, stationary contact points connected to said socket members, a metallic ring u on said member and having projections ar jacent to said sockets, a rotatable disk with resilient contact points thereon, one or more of which is adapted to be thrown against said contact points connected with the sockets as the disk is turned, and a cover for said switch carrying member, as set forth.

2. A cluster electric fixture comprising a switch holding member with bulb sockets thereon, stationary contact points connected to said socket members, a metallic ring u on said member and having projections acjacent to said sockets, a rotatable disk, resilient metallic contact points thereon ada ted to be thrown against one or another 0 the contact points, which are connected to said sockets, as the disk is rotated, the upper surface of said member being recessed and provided with metallic lining, projections upon the resilient contact points bearing against said lining, means for rotating said disk, and a cover for the switch carrying member, as

set forth.

3. A cluster electric fixture comprising a switch holding member with bulb sockets thereon, stationary contact pointsconnected tosaid sockets, a metallic ring upon said member and having rejections adjacent to said sockets, arotatafile disk, resilient metal- 'lic contact points thereon adapted to be thrown-against one or another of the contact points, which are connected to said sockets, as the disk is rotated, the upper surface of said member being recessed. and provided with metallic lining, projections upon the resilient contact points bearing against said lining, a pin fixed'to said disk and projecting through an aperture in said member and having athreaded end, a cover for said member provided with .holes registering with said sockets, said pin projecting through the cover, and a button fitted to the threaded end of the pin, as set forth.

d. A cluster electric fixture comprising a Sfll'tilil hold .iember with bulb sockets thereon, stat. scary contact points connected to said socket members, a metallic ring 11 on said member and having projections a jacent to said sockets, a rotatable disk, resilient metallic contact points thereon ada ted to be thrown against one' or another 0 the contact points, which are connected to said sockets, as the disk is rotated, the upper surface of said member being recessed and provided with metallic lining, projections upon the resilientv contact points bearing against said lining, a pin fixed to said disk and extending through an aperture in said member, a key passing through an aperture in said pin, a s ring bearing between said key and the en of said member, a cover for the switch member and provided with apertures registering-with the bulb sockets, and a key upon said pin, as set forth.

5. A cluster electric fixture comprising a 4 switch holding member with bulb sockets thereon, stationary contact points connected to said socket members, a metallic ring upon said member and having pro'ections adjacent to said sockets, a rotatabl e disk, resilient .metallic contact points thereon adapted to be thrown against one or another of the contact points, which are connected to said sockets, as the disk is rotated, the upper surface of said member being recessed and providedwith metallic lining, projections upon the resilient contact points bearing against said lining, a pin fixed to' said disk and extending throu h an aperture in said member, a key passing t ough an aperture in said pin, a spring bearing between said key and the en of said member, a cover for the switch member and rovided with apertures registering with t e bulb sockets, said member having lugs upon the face thereof, a shade supporting plate having fingers with hooked ends ada ted to engage said lugs, as set forth.

6; A c uster fixture for electric lights comprising a member havin a recess formed in the face thereof, a metallic. lining for said reces s, a rotatable disk held against said member, fixed contact points seated in the face of the latter, resilient metallic arms upon said disk adapted to bear against said contact points as the disk is rotated, each of said resilient arms having an angled arm extending within said recess and bearing against said metallic lining, bulb sockets fixed to said member and electrically connected to said contact points, a metallic ring upon said member provided with lugs, one positioned in alinement with each opening in the bulb socket, a cover fitted over said member and provided. with openings registering with the socket member,- as set forth.

In testimony whereof I hereunto afiix my signature in the presence of two witnesses.

JOHN CALDWELL. Witnesses:

T. H. Minimum,

Pra'rr. 

